The Mount Gretna Area Historical Society is a non-profit 501(c)(3) organization, IRS EIN #20-1365874. The Society is registered as a charitable organization with the State of Pennsylvania, Certificate #31649. A copy of the 2006 registration filing including financial information may be obtained from the Pennsylvania Department of State by calling toll-free within Pennsylvania, 1-800-732-0999. Registration does not imply endorsement.